Modernize to SDK-style csproj, slnx solution, latest C# idioms

.editorconfig

@@ -1,21 +1,114 @@
-; EditorConfig to support per-solution formatting.
-; Use the EditorConfig VS add-in to make this work.
-; http://editorconfig.org/
+# EditorConfig is awesome:http://EditorConfig.org
 
-; This is the default for the codeline.
+# top-most EditorConfig file
 root = true
 
+# Don't use tabs for indentation.
 [*]
-end_of_line = CRLF
+indent_style = space
+# (Please don't specify an indent_size here; that has too many unintended consequences.)
 
-[*.{cs,txt,md}]
-indent_style = tab
+# Code files
+[*.{cs,csx,vb,vbx}]
 indent_size = 4
 
-[*.{sln,proj,props,targets,xml,config,nuspec}]
-indent_style = tab
-indent_size = 4
+# Xml project files
+[*.{csproj,vbproj,vcxproj,vcxproj.filters,proj,projitems,shproj,msbuildproj,props,targets}]
+indent_size = 2
 
-[*.{csproj,wixproj,resx,user}]
-indent_style = space
-indent_size = 2
+# Xml config files
+[*.{ruleset,config,nuspec,resx,vsixmanifest,vsct}]
+indent_size = 2
+
+# YAML files
+[*.{yaml,yml}]
+indent_size = 2
+
+# JSON files
+[*.json]
+indent_size = 2
+
+# Dotnet code style settings:
+[*.{cs,vb}]
+tab_width = 4
+
+# Sort using and Import directives with System.* appearing first
+dotnet_sort_system_directives_first = true
+# Avoid "this." and "Me." if not necessary
+dotnet_style_qualification_for_field = false:suggestion
+dotnet_style_qualification_for_property = false:suggestion
+dotnet_style_qualification_for_method = false:suggestion
+dotnet_style_qualification_for_event = false:suggestion
+
+# Use language keywords instead of framework type names for type references
+dotnet_style_predefined_type_for_locals_parameters_members = true:suggestion
+dotnet_style_predefined_type_for_member_access = true:suggestion
+
+# Suggest more modern language features when available
+dotnet_style_object_initializer = true:suggestion
+dotnet_style_collection_initializer = true:suggestion
+dotnet_style_coalesce_expression = true:suggestion
+dotnet_style_null_propagation = true:suggestion
+dotnet_style_explicit_tuple_names = true:suggestion
+
+# CSharp code style settings:
+
+# IDE0040: Add accessibility modifiers
+dotnet_style_require_accessibility_modifiers = omit_if_default:error
+
+# IDE0040: Add accessibility modifiers
+dotnet_diagnostic.IDE0040.severity = error
+
+# IDE1100: Error reading content of source file 'Project.TargetFrameworkMoniker' (i.e. from ThisAssembly)
+dotnet_diagnostic.IDE1100.severity = none
+
+[*.cs]
+# Top-level files are definitely OK
+csharp_using_directive_placement = outside_namespace:silent
+csharp_style_namespace_declarations = block_scoped:silent
+csharp_prefer_simple_using_statement = true:suggestion
+csharp_prefer_braces = true:silent
+
+# Prefer "var" everywhere
+csharp_style_var_for_built_in_types = true:suggestion
+csharp_style_var_when_type_is_apparent = true:suggestion
+csharp_style_var_elsewhere = true:suggestion
+
+# Prefer method-like constructs to have an expression-body
+csharp_style_expression_bodied_methods = true:none
+csharp_style_expression_bodied_constructors = true:none
+csharp_style_expression_bodied_operators = true:none
+
+# Prefer property-like constructs to have an expression-body
+csharp_style_expression_bodied_properties = true:none
+csharp_style_expression_bodied_indexers = true:none
+csharp_style_expression_bodied_accessors = true:none
+
+# Suggest more modern language features when available
+csharp_style_pattern_matching_over_is_with_cast_check = true:error
+csharp_style_pattern_matching_over_as_with_null_check = true:error
+csharp_style_inlined_variable_declaration = true:suggestion
+csharp_style_throw_expression = true:suggestion
+csharp_style_conditional_delegate_call = true:suggestion
+
+# Newline settings
+csharp_new_line_before_open_brace = all
+csharp_new_line_before_else = true
+csharp_new_line_before_catch = true
+csharp_new_line_before_finally = true
+csharp_new_line_before_members_in_object_initializers = true
+csharp_new_line_before_members_in_anonymous_types = true
+
+# Test settings
+[**/*Tests*/**{.cs,.vb}]
+# xUnit1013: Public method should be marked as test. Allows using records as test classes
+dotnet_diagnostic.xUnit1013.severity = none
+
+# CS9113: Parameter is unread (usually, ITestOutputHelper)
+dotnet_diagnostic.CS9113.severity = none
+
+# Default severity for analyzer diagnostics with category 'Style'
+dotnet_analyzer_diagnostic.category-Style.severity = none
+
+# VSTHRD200: Use "Async" suffix for async methods
+dotnet_diagnostic.VSTHRD200.severity = none

.gitattributes

@@ -0,0 +1,9 @@
+# normalize by default
+* text=auto encoding=UTF-8
+*.sh text eol=lf
+*.sbn eol=lf
+
+# These are windows specific files which we may as well ensure are
+# always crlf on checkout
+*.bat text eol=crlf
+*.cmd text eol=crlf

.github/dependabot.yml

@@ -0,0 +1,48 @@
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+- package-ecosystem: nuget
+  directory: /
+  schedule:
+    interval: daily
+  groups:
+    Azure:
+      patterns:
+        - "Azure*"
+        - "Microsoft.Azure*"
+    Identity:
+      patterns:
+        - "System.IdentityModel*"
+        - "Microsoft.IdentityModel*"
+    System:
+      patterns:
+        - "System*"
+      exclude-patterns:
+        - "System.IdentityModel*"
+    Extensions:
+      patterns:
+        - "Microsoft.Extensions*"
+      exclude-patterns:
+        - "Microsoft.Extensions.AI*"
+    ExtensionsAI:
+      patterns:
+        - "Microsoft.Extensions.AI*"
+    Web:
+      patterns:
+        - "Microsoft.AspNetCore*"
+    Tests:
+      patterns:
+        - "Microsoft.NET.Test*"
+        - "xunit*"
+        - "coverlet*"
+    ThisAssembly:
+      patterns:
+        - "ThisAssembly*"
+    ProtoBuf:
+      patterns:
+        - "protobuf-*"
+    Spectre:
+      patterns:
+        - "Spectre.Console*"

.github/release.yml

@@ -0,0 +1,32 @@
+changelog:
+  exclude:
+    labels:
+      - bydesign
+      - dependencies
+      - duplicate
+      - question
+      - invalid
+      - wontfix
+      - need info
+      - techdebt
+    authors:
+      - devlooped-bot
+      - dependabot
+      - github-actions
+  categories:
+    - title: ✨ Implemented enhancements
+      labels: 
+        - enhancement
+    - title: 🐛 Fixed bugs
+      labels: 
+        - bug        
+    - title: 📝 Documentation updates
+      labels: 
+        - docs
+        - documentation
+    - title: 🔨 Other
+      labels: 
+        - '*'
+      exclude:
+        labels:
+          - dependencies

.github/workflows/build.yml

@@ -0,0 +1,108 @@
+# Builds and runs tests in all three supported OSes
+# Pushes CI feed if secrets.SLEET_CONNECTION is provided
+
+name: build
+on: 
+  workflow_dispatch:
+    inputs:
+      configuration:
+        type: choice
+        description: Configuration
+        options: 
+        - Release
+        - Debug
+  push:
+    branches: [ main, 'feature/*', 'rel/*' ]
+    paths-ignore:
+      - changelog.md
+      - readme.md
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+env:
+  DOTNET_NOLOGO: true
+  PackOnBuild: true
+  GeneratePackageOnBuild: true
+  VersionPrefix: 42.42.${{ github.run_number }}
+  VersionLabel: ${{ github.ref }}
+  GH_TOKEN: ${{ secrets.GH_TOKEN }}
+  MSBUILDTERMINALLOGGER: auto
+  Configuration: ${{ github.event.inputs.configuration || 'Release' }}
+  SLEET_FEED_URL: ${{ vars.SLEET_FEED_URL }}
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  os-matrix:
+    runs-on: ubuntu-latest
+    outputs:
+      matrix: ${{ steps.lookup.outputs.matrix }}
+    steps:
+      - name: 🤘 checkout
+        uses: actions/checkout@v4
+
+      - name: 🔎 lookup
+        id: lookup
+        shell: pwsh
+        run: |
+          $path = './.github/workflows/os-matrix.json'
+          $os = if (test-path $path) { cat $path } else { '["ubuntu-latest"]' }
+          echo "matrix=$os" >> $env:GITHUB_OUTPUT
+
+  build:
+    needs: os-matrix
+    name: build-${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: ${{ fromJSON(needs.os-matrix.outputs.matrix) }}
+    steps:
+      - name: 🤘 checkout
+        uses: actions/checkout@v4
+        with: 
+          submodules: recursive
+          fetch-depth: 0
+
+      - name: ⚙ dotnet
+        uses: devlooped/actions-dotnet-env@v1
+
+      - name: 🙏 build
+        run: dotnet build -m:1 -bl:build.binlog
+
+      - name: 🧪 test
+        shell: pwsh
+        run: dnx --yes retest -- --no-build
+
+      - name: 🐛 logs
+        uses: actions/upload-artifact@v4
+        if: runner.debug && always()
+        with:
+          name: logs
+          path: '*.binlog'
+
+      - name: 🚀 sleet
+        env:
+          SLEET_CONNECTION: ${{ secrets.SLEET_CONNECTION }}
+        if: env.SLEET_CONNECTION != ''
+        run: |
+          dotnet tool update sleet -g --allow-downgrade --version $(curl -s --compressed ${{ vars.SLEET_FEED_URL }} | jq '.["sleet:version"]' -r)        
+          sleet push bin --config none -f --verbose -p "SLEET_FEED_CONTAINER=nuget" -p "SLEET_FEED_CONNECTIONSTRING=${{ secrets.SLEET_CONNECTION }}" -p "SLEET_FEED_TYPE=azure" || echo "No packages found"
+
+  dotnet-format:
+    runs-on: ubuntu-latest
+    steps:
+      - name: 🤘 checkout
+        uses: actions/checkout@v4
+        with: 
+          submodules: recursive
+          fetch-depth: 0
+
+      - name: ⚙ dotnet
+        uses: devlooped/actions-dotnet-env@v1
+
+      - name: ✓ ensure format
+        run: |
+          dotnet format whitespace --verify-no-changes -v:diag --exclude ~/.nuget
+          dotnet format style --verify-no-changes -v:diag --exclude ~/.nuget

.github/workflows/changelog.config

@@ -0,0 +1,9 @@
+usernames-as-github-logins=true
+issues_wo_labels=true
+pr_wo_labels=true
+exclude-labels=bydesign,dependencies,duplicate,discussion,question,invalid,wontfix,need info,docs
+enhancement-label=:sparkles: Implemented enhancements:
+bugs-label=:bug: Fixed bugs:
+issues-label=:hammer: Other:
+pr-label=:twisted_rightwards_arrows: Merged:
+unreleased=false

.github/workflows/changelog.yml

@@ -0,0 +1,39 @@
+name: changelog
+on:
+  workflow_dispatch:
+  release:
+    types: [released]
+
+jobs:
+  changelog:
+    runs-on: ubuntu-latest
+    steps:
+      - name: 🤖 defaults
+        uses: devlooped/actions-bot@v1
+        with:
+          name: ${{ secrets.BOT_NAME }}
+          email: ${{ secrets.BOT_EMAIL }}
+          gh_token: ${{ secrets.GH_TOKEN }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: 🤘 checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          ref: main
+          token: ${{ env.GH_TOKEN }}
+
+      - name: ⚙ ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 3.0.3
+
+      - name: ⚙ changelog
+        run: |
+          gem install github_changelog_generator 
+          github_changelog_generator --user ${GITHUB_REPOSITORY%/*} --project ${GITHUB_REPOSITORY##*/} --token $GH_TOKEN --o changelog.md --config-file .github/workflows/changelog.config
+
+      - name: 🚀 changelog
+        run: |
+          git add changelog.md
+          (git commit -m "🖉 Update changelog with ${GITHUB_REF#refs/*/}" && git push) || echo "Done"